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sveticcg [70]
2 years ago
11

How many grams are in 8.3 moles of CaCl2?

Chemistry
2 answers:
ser-zykov [4K]2 years ago
8 0

Answer:

\Large \boxed{\sf 921.3 \ g}

Explanation:

Use formula

\displaystyle moles=\frac{mass}{M_r}

M_r=40+35.5 \times 2 = 111

Solve for mass

mass=8.3 \times 111=921.3

r-ruslan [8.4K]2 years ago
3 0

Answer:

(8.3×40)+(8.3×71)

921.3grames

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Concept Review<br> 14.11. Can a reaction that is not reversible achieve chemical equilibrium?
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Answer:

No

Explanation:

Chemical equilibrium is reached by the forward reaction rate equaling the reverse reaction rate. If the reaction is not reversible, this could not occur.

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In a rocket motor fueled with butane, how many kg of liquid oxygen should be provided with each kilogram of butane to provide fo
Travka [436]
<u>Answer</u>

So this is the reaction that happens. 
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<span>2C4H10 + 8O2 = 8CO2 + 10H2O </span>

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<span>2H2 + O2 = 2H2O </span>

<span>Given 1000 g of Hydrogen, I need to know how many grams of oxygen to use. To convert grams to moles,
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The equilibrium constant for the reaction AgBr(s) Picture Ag+(aq) + Br− (aq) is the solubility product constant, Ksp = 7.7 × 10−
barxatty [35]

Answer:

The reaction will be  non spontaneous at these concentrations.

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AgBr(s)\rightarrow Ag^+(aq) + Br^- (aq)

Expression for an equilibrium constant K_c:

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K_{sp}=[Ag^+][Br^-]=K_c=7.7\times 10^{-13}

Reaction between Gibb's free energy and equilibrium constant if given as:

\Delta G^o=-2.303\times R\times T\times \log K_c

\Delta G^o=-2.303\times R\times T\times \log K_{sp}

\Delta G^o=-2.303\times 8.314 J/K mol\times 298 K\times \log[7.7\times 10^{-13}]

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\Delta G=40.588 kJ/mol

  • For reaction to spontaneous reaction:  \Delta G.
  • For reaction to non spontaneous reaction:  \Delta G>0.

Since ,the value of Gibbs free energy is greater than zero which means reaction will be non spontaneous at these concentrations

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SashulF [63]
When a solid forms with two solutions are mixed it is a precipitate 
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